Drier.



- UNITED STATES PATENT OFFICE.

FB ANCIS EDWARD HAYDEN, OF GRANITE, COLORADO.

DRIER.

Specification of Letters I'atent.

Patented Jan. 3, 1911.

. Application filed July 23, 1910. Serial No. 578,502.

To all whom it may concern:

. Be it known that I, FRANCIS E. HAYDEN, a citizen of the United States, residing at Granite, in the county of Chafl'ee and State of Colorado have invented a new and useful Drier, of which the following is a specification.

This invention has relation to driers especially ada ted tobe used for desiccating hay and a1 alfa, all fodder, sugar-factory pulps, brewery waste and similar material and it consists in the novel construction and arrangement of its parts as hereinafter shown and described.

The object of the invention is to provide a drier especially adapted to be used to ad vantage at high altitudes. Frequentl it is the case in such localities that rainfa ls are protracted and that subsequent to such rainfalls and prior to thorough drying freezing sets in and consequently it is impossible in many instances 'to cut and harvest hay and the like before the same has become thoroughly dried under the sun and it is jected to the cooling influences of blasts of air and may' be fedto a press or grinding mill as desired.

With this object in view the. structure includes a kiln of special structure mounted upon a running gear and so arranged that a series of the said kilns may be connected together. A conveyer is mounted for movement along the bottom of the kilns and to the terminal kiln of the series is attached a blower which is adapted to discharge blasts of air upon the batch of hay as it is ejected from the drier and also the said blower is so arranged as to remove from the hay the products of evaporation and discharge the same from the kiln.

In the accompanying drawings :Figure 1 is vertical longitudinal sectional view of the drier. Fig. 2 is an end view of the same. Fig. 3 is a transverse sectional view of the same.

The drier may be composed of a series of swer for all. The kiln consists of an outer ings the fluid out1et'5 of one of the kiln sections is connected with the fluid inlet 4 of the adjacent section by means of a pipe 6. It is by this or similar means that the series of kilns are connected to ether. Each of the kiln sections is mounte upon a running gear 7 and the said running gears are provided with supporting ground wheels 8 of usual pattern. The terminal kiln sections of the series are provided each with a roller designated at 9 and 10 in Fi 1 of the drawings and about the said rol ers an endless conveyer 11 is adapted to move the upper run of the said conveyer passing along the lower inner side of the casing 2 and the lower run of the said conveyer passing alon the under outer side of the casing 1. shaft 12 is journaled for rotation at the delivery end of one of the terminal kilns and is provided with fan blades 13 which serve as suction means for drawing the air and products of evaporation from the interiors of the kiln sections and assin the same through the casing 14 and out through the discharge outlet 15. The said shaft 12 is further provided with fan blades 16 which are adapted to draw external air into the casing 14 and discharge the same through outlets 17 and 18 upon the batch of material as it is discharged from the terminal kiln section.

The operation of the drier is as follows. The drier is made in sections in order that it may be readily transported from place to place and in operation it is preferable to position the same adjacent a press. When the hay or similar material is cut it is carried to the drier and fed into the receiving end of one of the terminal kiln sections. The conveyer 11 is maintained in movement about the rollers 9 and 10 and as the material passes through the kiln sections it is subjected to the influence of heat carried by a fluid which is passed in through the space 3 between the casings 1 and 2 through the inlet 1 and passed out of the said space or chamber through the outlet 5. At the same time the shaft 12 is maintained in a state of discharged therefrom in jets through the.

discharge outlets 17 and 18 upon the batch of material which has previously been heated by coming in contact with the inner surface of the wall of the casing 2. Thus as .the batch of material is fed to the press it is cooled and is not subjected to compression in .such condition as to eventually result in loss from rot or otherwisedue to excessive artificial heating.

By such an arrangement it will beseen that a simple and effective means is provided for artificially dr ing hay and the like and that the proper esiccation' of the material may be accomplished irrespective of the atmospheric conditions or the state of the weather; It will further be seen that the process of drying is facilitated by reason of the fact that the products of evaporation are promptly removed from the interiors of the inner casings of the kiln sections and also by reason of the fact that the hay or other commodity is subjected to the cooling effects of blasts of air the said material is not liable to be damaged by immediate compression which damage might otherwise result'from an excessive application of artificial'heat.

Having described the invention what I claim as new and desire to secure by Letters Patent is sisting of inner and outer casings spaced and I 40 1. A portable drier composed of kilns conclosed at their ends whereby chambers "are"- inlets and outlets communicating with the compartments, a conveyer mounted for movement along the inner casings,-means for removing the products of evaporation from the inner casings and cooling means for subjectiiig the material which passes through the kiln to the cooling effects of air blasts at the delivery end of the kiln.

In testimony that Iclaim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

' FRANCIS EDWARD HAYDEN.

Witnesses RODERICK F MoLEon, LLOYD -HARRISON. 

